We can't deny it; we all need cars for us to live life normally everyday. Even if we have to go back to the basics to cut high costs of living, we cant really do without cars. They have become necessities in life through the years. However, some vehicles are harder to maintain and consumes more fuel; thus for some, they are pain in the neck—and the pocket—rather than helpful driving machines. But don't worry, there are many ways to improve gas mileage; though you may have to replace some of your stock auto parts.